package com.abel.quiz.utils;/**
 * Created by abel.lin on 2017/4/1.
 */

import org.apache.commons.lang3.StringUtils;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Properties;

/**
 * @author abel.lin
 * @date_time 2017/4/1 14:42
 * @description
 */
public class PropertyUtil {
//    private static final Logger logger = LoggerFactory.getLogger(PropertyUtil.class);
    private static Properties props;
    static{
        loadProps();
    }

    synchronized static private void loadProps(){
//        logger.info("开始加载properties文件内容.......");
        props = new Properties();
        InputStreamReader in = null;
        try {
            //第一种，通过类加载器进行获取properties文件流
            in = new InputStreamReader(PropertyUtil.class.getClassLoader().getResourceAsStream("config.properties"),"UTF-8");
            //-第二种，通过类进行获取properties文件流-->
            //in = PropertyUtil.class.getResourceAsStream("/jdbc.properties");
            props.load(in);
        } catch (FileNotFoundException e) {
//            logger.error("config.properties文件未找到");
        } catch (IOException e) {
//            logger.error("出现IOException");
        } finally {
            try {
                if(null != in) {
                    in.close();
                }
            } catch (IOException e) {
//                logger.error("config.properties文件流关闭出现异常");
            }
        }
//        logger.info("加载properties文件内容完成...........");
//        logger.info("properties文件内容：" + props);
    }

    public static String getProperty(String key){
        if(null == props) {
            loadProps();
        }
        String val = props.getProperty(key);
/*        try {
            val = new String(val.getBytes("ISO-8859-1"),"GBK");
        } catch (UnsupportedEncodingException e) {}*/
        return val;
    }

    public static String getProperty(String key, String defaultValue) {
        if(null == props) {
            loadProps();
        }
        String val = getProperty(key);
        if(StringUtils.isBlank(val)){
            val = defaultValue;
        }
        /*try {
            val = new String(val.getBytes("ISO-8859-1"),"GBK");
        } catch (UnsupportedEncodingException e) {}*/
        return val;
    }

    public static int getPropertyInt(String key){
        int num = 0;
        String value = getProperty(key,"0");
        try{
            num = Integer.valueOf(value);
        }catch (Exception e){
            num = 0;
        }

        return num;
    }

    public static double getPropertyDouble(String key){
        double num = 0;
        String value = getProperty(key,"0");
        try{
            num = Double.valueOf(value);
        }catch (Exception e){
            num = 0;
        }
        return num;
    }
}
